JOptionPane default selection

Question

Hi,
I am using a JOptionPane to offer some selections to the user.
I am trying to set the last button as the default, but it always seems to use the first button as the default.
My code goes like this:-
Object[] options = {"Print Applet", "Print List", "Export to File", "Cancel"};
int selection = JOptionPane.showOptionDialog(null, "Choose Option or Cancel", "Export Options",
JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null,
options, options[3]);
I want Cancel button to be default, but Print Applet is!
Any ideas?
Cheers
Sue

Answer 1

Works for me (see attached sample working code). You may be confusing the default button with the button that has focus. The default button is the button that responds to the Enter key press anywhere in the dialog (visually it's the button with the darker border). In your case that button is the Cancel button. However the Print Applet button has the focus (it's the button with the focus rectangle around the button's text. Pressing the spacebar will trigger an action on that button).
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
public class Option {
public static void main(String args[]) {
  new OptionFrame();
class OptionFrame extends JFrame implements ActionListener {
JButton open = new JButton("Open...");
OptionFrame() {
  super();
  /* Components should be added to the container's content pane */
  Container cp = getContentPane();
  cp.add(open);
  open.addActionListener(this);
  /* Add the window listener */
  addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent evt) {
    dispose(); System.exit(0);}});
  /* Size the frame */
  setSize(200,200);
  /* Center the frame */
  Dimension screenDim = Toolkit.getDefaultToolkit().getScreenSize();
  Rectangle frameDim = getBounds();
  setLocation((screenDim.width - frameDim.width) / 2,(screenDim.height - frameDim.height) / 2);
  /* Show the frame */
  setVisible(true);
public void actionPerformed(ActionEvent evt)
  Object obj = evt.getSource();
  if (obj == open)
   Object[] options = {"Print Applet", "Print List", "Export to File", "Cancel"};
   int selection = JOptionPane.showOptionDialog(null, "Choose Option or Cancel", "Export options",
                                                                 JOptionPane.YES_NO_CANCEL_OPTION,
                                                                 JOptionPane.QUESTION_MESSAGE, null, options,
                                                                 options[3]);
}